Ikea Fredde Cable Trim

This is the trim that sits in the back of the desk for cable management to make it neater. I made this model in FreeCAD since I lost the originals in a move.

It is a tight fit into my desk so you may have issues getting it to initially fit into yours if it is a fairly new desk.

You may need to flip the model when slicing to allow it to print without supports and rafts.